How to write process control descriptions
Thread Content
Hello everyone! I need to write a control description for a work section in the past two days. I don’t know where to start. What are the specific points? I hope you can give me some guidance, preferably a template or something like that!
There is no need to describe general controls. If there are complex controls, you can briefly introduce them. If there are interlocks, you should focus on the purpose of the interlocks, the control process, parameter settings, etc.
Thank you for your advice, I will try to write it first!
It should be written in conjunction with the process flow, and the control process should be clearly expressed. The specific process parameters should be written clearly, and how to achieve control, as mentioned on the second floor. : “If there is complex control, you can briefly introduce it. If there is interlocking, you should focus on the purpose of the interlocking, the control process, parameter settings, etc." You must understand the control process and how to control key process parameters!
First, there must be a brief introduction to the process flow of this section, and then an introduction to the control part, such as how many control loops, how many monitoring points, etc. I think the control scheme of important control loops should be written in, such as some cascade and split-range adjustment loops, explaining why such a control method is adopted and how the control indicators are achieved, etc. If a DCS control system is adopted, a brief introduction and simple operation of DCS should also be included. There is also an introduction to chain alarm and emergency stop systems. If it is shown to process personnel, it would be better to include various process control indicators. This post was last edited by frankqe on 2008-1-16 13:50 ]
In fact, the main thing is to describe the time sequence, which is called a sequence diagram.
What the poster mentioned should be called process control philosophy, or process control strategy. In foreign countries, it is called process control philosophy. It is basically written according to the process, based on the process, but it is an expansion of the process. According to the process, the process of each stage is clearly explained, how to achieve and control it, and what kind of loops and chains there are. It is also written according to the system, such as the water addition system and the lime addition system. In addition, this document is closely linked to the P&ID diagram.